?Maintenance instructions?: When it needs to be cleaned, just throw it into the washing machine and let it do the rest. It's that simple! Good flexibility allows your pet to move freely, suitable for all seasons. S: Upper width: 2.3, lower width: 6.3, height: 5.9, belt length: 13.8 on each side M: Upper width: 3.1, lower width: 9.4, height: 8.7, belt length: 13.8 on each side L: Upper width: 3.9, lower width: 11.8, height: 10.2, belt length: 15.7on each side We are full of confidence in our products, and we provide perfect after sales service for each of our products. Please read the size chart before choosing, and then choose the most suitable clothes for your dog. If the size is between two sizes, please choose the larger one.